In ECG tracings, extension of the P-R interval to more than… Post author By Anonymous Post date January 24, 2025 Related Posts:In ECG tracings, extension of the P-R interval to…In ECG tracings, extension of the P-R interval to…Match the EKG tracings with the appropriate deinition. ← After merging with the external and internal jugular veins,… → Deoxygenated blood is carried away from the right ventricle…